Insufficient Bandwidth Linksys WRT54G 2.2

IChat 3.01 works fine if I connect my computer directly to my Comcast cable modem. When connected through the WRT54G I can text chat but audio chat attempts produce the dreaded "insufficient bandwidth" message. I updated the Linksys to v4.20.7. I have tried to open ports as listed in some of the other posts on this problem. I have selected Upnp enable, and Upnp disable. I have selected DHCP disable, and enable. I have reinstalled the 10.4.2 update. I have repaired permissions. In short, I have tried to utilize every fix detailed in the hundreds of messages offering fixes. Since iChat works fine without the Linksys in the mix, I am inevitably led back to the idea that somewhere I have a mistake in my Linksys setup. Has anyone got a setup guide for v4.20.7 firmware of the Linksys WRT54G that will help me step through each and every setting required to get this thing working? Or is this device just not going to ever work with iChat? Thanks in advance for your help.

I have the WRT54G (Ver 4.0/4.20.7 firmware). I have mine configured with UPnP only which opens the following ports: 1024 to 5000 Both TCP and UDP.
Try configuring it only with UPnP enabled(Take out all of the port forwarding and port openings, Unplug your modem, router, and mac and then plug them in in this order: Modem (then wait a minutes or two),router (then wait a few seconds), and then your mac and give that a go.
Then try testing with a known working screen account. (My screen name is in my profile if you want to test with me)
I've noticed the WRT54G isn't real good releasing ports from UPnP without rebooting.
That's how I got my WRT54G working and I can now chat with both Mac and PC's.
Hope this helps!
P.S. I have my mac firewall off.

Similar Messages

IChat w/ Linksys WRT54G- insufficient bandwidth error

Hi,
I am having trouble doing a video chat with iChat AV 3.1.5. Everytime I try to connect to a friend (using the same version of iChat) I get an error stating there is insufficient bandwidth. I have a cable modem connected over a linksys router and I am pretty sure my bandwidth meets iChat's requirements.
So far I've disable my Mac OS's firewall, disabled the firewall on my router, enabled upnp, diasbled upnp and port forward the port range I am using for iChat. Nothing has worked.
Any help provided would be greatly appreciated. I am at a loss about what to try next.
Thanks,
Lauren
iMac (intel) Mac OS X (10.4.7)
iMac (intel) Mac OS X (10.4.7)

i can not offer you professional support, only a solution (one of many) that solved this particular issue!
i have the very same router, except i don't have the "security enabled" new one. i read and read possible solutions, i tried them all and only one of them worked for me.
** access the administrative page at 192.168.1.1 i believe and log in (default is "admin" and "admin")
go to access restrictions, then look at the "DMZ" menu
change those settings to allow all the ports to accept incomming and outgoing, this also exposes your router to possible attacks. i guess when your done, close those ports from the DMZ menu, use this in conjuction with the ports settings in access restrictions (port forwarding)
this is a very tedious technique, but then again, iChat has some very stupid connection issues. this way may not be the best but it worked for me. if some else has a more permanent solution, please do help the guy.
iMac G5 06' Mac OS X (10.4.6) 1.9GHZ 1.5G Memory 160GB HD 128MB ATI Video

AirPort Extreme + Linksys WRT54g?

I have a Nov 09 AirPort withought dual band networking, that replaced a like 2005 Linksys WRT54G router.
I was wanting to do this and see if it is possible.
Have AirPort set up as main router, N only. Have Linksys as extended, connected via ethernet, set to wireless-G. Having the N only devices connect to AirPort and all non-N connect to Linksys.
Will the linksys make the AirPort run slower at G speeds? Right now everything is connected to AirPort g/n devices only. I wouldnt want to end up doing all this work and all the speeds be the same.

Will the linksys make the AirPort run slower at G speeds?
No, with the Linksys connected to the 802.11n AirPort Extreme Base Station (AEBSn) by Ethernet, you can create a "simultaneous" dual-band network, where non-"n" clients would connect to the Linksys router and not affect the bandwidth of the AEBSn.

How to hook up a Linksys WRT54G to Motorola NVG589. PLEASE HELP!

Hello, I have recently switched over to AT&T Uverse and I am loving it. One thing I miss is having extra ethernet ports to plug in my desktop computer and my Xbox 360. When the Uverse technician came in, he installed a Motorola NVG589 modem that also has a built in wireless router. He also installed a VAP2500 as a receiver for 2 wireless TV boxes. The VAP2500 plugs into the back of the Motorola NVG589. 3 other TV boxes are plugged into the back as well. My dilemma is the fact that all of the ports are being taken up. I need at least 2 more ethernet ports free so I can hook up my Xbox 360 (my model doesn't have built in wifi) and my desktop computer as well. I told the technician this when he installed the system and he told me to go on ebay and buy 2 cheap splitters and split 2 TV boxes that are coming into the NVG589. I did so. It didn't work out. I called up AT&T and the guy over the phone said that was the worst thing I could've done. He told be I should buy an ethernet switch. I had my Linksys WRT54G (Version 6) router laying around at the time and realized that it had a built in ethernet switch. I want to get this to also function as another Wifi hotspot because I have an old PowerMac G4 downstairs that won't connect to the NVG589 for some reason (it says connection timeout). I am guessing that the wifi card in the system may be too old to connect to the modern NVG589. So, I need the 2 extra ethernet ports and another Wifi hotspot from this setup. I have tried multiple things to get this to work. The closest way I could get it to work was when I plugged an ethernet cable from the LAN port on the WRT54G to port on the back of the NVG589. I then plugged the TV box ethernet cable I had to disconnect into the second LAN port on the WRT54G as well as plugging my Xbox 360 into the 3rd LAN port and my computer into the 4th LAN port. This worked great for the TV box and the Xbox 360. However, the computer's ethernet connection ran very slow and the WIfi from the WRT54G was very slow as well. The Wifi from the NVG589 was slow too. I unhooked that setup and put it back to what it was beforehand. Is there anyone that knows of a flawless way of setting this up? Any articles someone can link me to? I've heard of bridging the NVG589...would that help me? How exactly would I do that? Please HELP. I have attached pics. On the back of the NVG589 - green ethernet is the DSL cable, both white ethernet cables along with the black one are TV boxes and the yellow ethernet cable is the VAP 2500. Thanks!

craigarc303 wrote:
Hello, I have recently switched over to AT&T Uverse and I am loving it. One thing I miss is having extra ethernet ports to plug in my desktop computer and my Xbox 360. When the Uverse technician came in, he installed a Motorola NVG589 modem that also has a built in wireless router. He also installed a VAP2500 as a receiver for 2 wireless TV boxes. The VAP2500 plugs into the back of the Motorola NVG589. 3 other TV boxes are plugged into the back as well. My dilemma is the fact that all of the ports are being taken up. I need at least 2 more ethernet ports free so I can hook up my Xbox 360 (my model doesn't have built in wifi) and my desktop computer as well. I told the technician this when he installed the system and he told me to go on ebay and buy 2 cheap splitters and split 2 TV boxes that are coming into the NVG589. I did so. It didn't work out. I called up AT&T and the guy over the phone said that was the worst thing I could've done. He told be I should buy an ethernet switch. I had my Linksys WRT54G (Version 6) router laying around at the time and realized that it had a built in ethernet switch. I want to get this to also function as another Wifi hotspot because I have an old PowerMac G4 downstairs that won't connect to the NVG589 for some reason (it says connection timeout). I am guessing that the wifi card in the system may be too old to connect to the modern NVG589. So, I need the 2 extra ethernet ports and another Wifi hotspot from this setup. I have tried multiple things to get this to work. The closest way I could get it to work was when I plugged an ethernet cable from the LAN port on the WRT54G to port on the back of the NVG589. I then plugged the TV box ethernet cable I had to disconnect into the second LAN port on the WRT54G as well as plugging my Xbox 360 into the 3rd LAN port and my computer into the 4th LAN port. This worked great for the TV box and the Xbox 360. However, the computer's ethernet connection ran very slow and the WIfi from the WRT54G was very slow as well. The Wifi from the NVG589 was slow too. I unhooked that setup and put it back to what it was beforehand. Is there anyone that knows of a flawless way of setting this up? Any articles someone can link me to? I've heard of bridging the NVG589...would that help me? How exactly would I do that? Please HELP. I have attached pics. On the back of the NVG589 - green ethernet is the DSL cable, both white ethernet cables along with the black one are TV boxes and the yellow ethernet cable is the VAP 2500. Thanks! Ya, the install tech must have been sleeping or texting or something during training.... or it's possible he misunderstood you and thought your were talking about needing extra phone ports, which could be accomplished with simple splitters. You were almost where you needed to be with your setup, you just missed some steps. Connect your wired computer only to one of the Linksys' LAN port. With the Linksys powered up press and hold the reset button for 15 seconds (will need toothpick or unfolded paperclip). This will perform a "factory" reset. When the Linksys is fully rebooted, log in to the Linksys. Do not configure the "Internet Connection Type" on the Linksys. Navigate to the "Wireless" section on the Linksys and configure the wireless. Do not use the same SSID (wireless network name) that the NVG589 uses. Save changes. Navigate to the "LAN" configuration on the Linksys and set the routers address to 192.168.1.1 and disable the DHCP Server. Save changes. This step will kick you out of the router. Power down your computer and the Linksys, run an Ethernet cable from a LAN port on the NVG589 to a LAN port on the Linksys, then power up the Linksys, and when it's fully rebooted, power up your computer. You should be good to go at this point. You will want to individually configure your wireless devices to use either the wireless network from the NVG or the wireless network from the Linksys. Otherwise they make keep jumping back and forth between the two, which will degrade performance for that device. You may still notice a slight to moderate performance drop for the wireless on both the NVG and the Linksys because they will be competing for the same wireless airspace along with the VAP2500.
How can you be in two places at once, when your not anywhere at all?
I really want to become a procrastinator, but I keep putting it off.
There are three kinds of people, those that can count, and those that can't.
“Our great democracies still tend to think that a stupid man is more likely to be honest than a clever man, and our politicians take advantage of this prejudice by pretending to be even more stupid than nature has made them." :Bertrand Russell

Having trouble setting up a linksys WRT54GS router with v...

Having trouble setting up a linksys WRT54GS router with verizon DSL using a westell 6100F modem. the modem works fine by its self but the router will not connect to the internet when installed like the cd tells you to.
online help and phone help has been less than helpful, anyone have any Ideas?

Ok I found " Installing the liksys wireless router with a westell 6100 modem" in the verizon troubleshooting guides. printed the instructions so I would'nt forget. step 1 open your web browser and enter http://192.168.1.1 in the address field. PROBLEM it comes up with a login screen that I don't know how to sign into. tried the obvious stuff. cannot get past the login screen. I knew this sounded to easy to be true. anyone have any ideas?

MacBook Pro can't obtain IP address from Linksys WRT54G v2 router

I believe I am having the issue described in the article below:
http://docs.info.apple.com/article.html?artnum=304817
In a nutshell, AirPort seems to be seeing the wireless router just fine, but internet connect is a no go. The router is a Linksys WRT54G v2, which should - SHOULD - work w/ my brand new MBP C2D 17", based on the reports I have seen in other threads here.
In the Network Status tab of the network pref pane, the message is: "Airport is connected to the network linksys. Airport has a self-assigned IP address and may not be able to connect to the Internet." This is in line with the Apple tech doc cited at the link above.
I am starting a new thread on this because, unlike many of the other folks who are having problems connecting wirelessly, my actual wireless connection seems to be rock solid (AirPort connects to the Linksys instantly, and shows up as full strength with no apparent dropouts). The problem seems to be with the IP address, as the MBP can't/won't pickup anything other than its self assigned IP when connecting.
Here are the things I have tried so far (most of which are probably irrelevant as it turns out, b/c the actual wireless connection has been fine - just not the TCP/IP stuff):
1. Updated to latest firmware in router.
2. Tried switching to different wireless channel (ch. 11 in this case, based on reports in other threads).
3. In Linksys settings, changed beacon interval to 50 and lowered packet thresholds as described in another post (can't find the link right now).
4. Formatted and re-installed OSX onto the MBP. Did NOT use Migration Assistant this time (since others were apparently having problems due to out of date prefs and PowerPC related items copied over from older machines).
5. Updated to latest version of OSX Tiger (10.4.8 with all patches installed) using a wired Ethernet connection to the internet.
6. Downloaded and installed the AirPort Update patch 2006-002 located at:
http://www.apple.com/support/downloads/airportupdate2006002.html
7. Repeatedly trashed all AirPort-related keychain items and the SystemPreferences folder in Root/Library/Preferences.
8. Repeatedly trashed and re-created a new wireless location using Network Assistant.
9. Salaam thrice towards Cupertino, wave rubber chicken and bathe self in pigs' blood while humming a continuous medley of Mac startup chimes from the last two decades.
Just kidding about #9, mostly.
I am starting a new thread about this because I believe my issue is OS related. The AirPort hardware seems to have a a full-strength and non-intermittent connection to the Linksys router. The problem appears to be w/ the (in)ability of OSX to negotiate an IP lease with the Linksys box.
I am posting this to the Linksys forum as well, but do not believe this to be a Linksys issue. I have two other PowerPC-based Mac laptops in my office, both of which connect flawlessly to the Linksys. (I'm typing this from one of them.) In fact, I have torture tested my new MBP with several other wireless routers with the same result - MBP will not connect, while both of the PowerBooks work like a charm with the other routers in question. Therefore, it surely seems to me like the common denominator here is definitely the MBP and not the router. I realize that in the support doc at the top of this post, Apple claims it is the responsibility of the router manufacturer, but I just cannot buy that line - based on the fact that EVERY OTHER LAPTOP that I own works great with the Linksys except for my shiny new MBP.
Beautiful machine otherwise and I really can't wait to get it working, but this is a SERIOUS pain in the you know what.
At any rate, if anyone has any ideas as to what to try next, I would love to hear about it. I will be calling AppleCare again first thing tomorrow morning, but it always seems the users are better informed than the Apple guys.
Thanks in advance for any suggestions.

if other computers connect to the router just fine , doesn't seem to me a router problem then .. the only thing i can think is to try connecting to a different network and see whether it does any good to u...can't help much if it's an OS related issue...

I have a linksys WRT54G router that we use as a base. I want to use Airplay using Airport Express and hook up my stereo to it. How can i set up my Airport express without a PC/laptop? I just downloaded Airport utility on my iphone and ipad,will that work?

I have a linksys WRT54G router that we use as a base. I want to use Airplay using Airport Express and hook up my stereo to it. How can i set up my Airport express without a PC/laptop? I just downloaded Airport utility on my iphone and ipad,will that work? And one more thing about the setup, the linksys router shich acts as a base is in a different room as the airport express which i wanted to use for airplay. So I'm hoping to hook up the Airport express via wireless signal. If i can set it up, can someone pls help me out by posting detailed instructions. Thanks so much!

The first message that AirPort Utility will display during the auto setup will be that the Express will be confgured to "extend" the network. When AirPort Utility analyzes the network further, and sees that the Express cannot "extend" the 3rd party network, the next message will indicate that the Express is being configured to "join" the wireless network.
Once the Express is configured, if you later go into AirPort Utility to check the settings under the Wireless tab, you will see that the Wireless Mode is indeed "Join a wireless network".

2 Macs on Linksys WRT54G, only 1 gets access at a time

I have an iBook and a Macbook, both connected wireless via airport to my Linksys WRT54G router/access point.
But only 1 Mac at a time can connect wirelessly to the Linksys access point.
Is this caused by interference?
DHCP is set to on, on Linksys with a maximum of 5 computers allowed.
Strange thing is that at my work we have a similar setup with multiple macs wirelessly connected to a linksys access point and all macs can connect simulateneously. So it must be possible
What can I do?

Yes, they are both using Airport and both set up as Using DHCP.
When the second Mac is turned on, while the first one was already successfull using airport, the second Mac will shortly flicker the airport reception to full reception, but shortly after that it will show no reception at all.

Can no longer connect to internet wirelessly with Linksys WRT54G...

Hi, all...
I'm at my father-in-law's house. His home network setup is as follows:
* Compaq desktop connected via Ethernet cable to
* Linksys WRT54G, v3 (IP 192.168.2.1) connected via Ethernet cable to
* Westell DSL modem provided by SouthEast Telephone (his ISP - IP 192.168.1.1)
I set this equipment up for him about 18 months ago. His Compaq desktop connects perfectly to the internet, using the setup I described above, which I set up for him about 18 months ago. I *used* to be able to connect to the internet wirelessly (with both my IBM ThinkPad and my MacBook; my bro-in-law *used* to be able to connect to the internet wireless (with his Dell laptop).
For reasons we don't yet understand, neither of us can connect wirelessly to the internet any longer. I have called Linksys, posted to their board, and read other threads here, so I am aware that MacBooks have some issues with Linksys routers. I'm getting ready to phone my father-in-law's ISP, to see if they can help.
But... I don't understand why this used to work, but doesn't any longer. I would be very grateful for any help any of you great folks could provide, and I will gladly post here any detailed info on the setup that might be of help!
Many thanks,
Bill J.
MacBook 2.0 Mac OS X (10.4.8) iMac 17in Core 2 Duo 2.0, AirPort Extreme, AirPort Express, IBM NetVista M42

Thanks for your reply.
Actually the Linksys 2Wire modem works fine in OSX and when connecting via a Compaq PC I also have in the house. It is just on the MacBook running XP that it fails to "connect". XP see's the network but cannot connect.
Also, I downloaded again bootcamp and created a fresh driver CD, reinstalled the driver and received the same error: 1706 No valid source could be found for product Macintoish Drivers foir Windows XP.msi.
I looked at the directory on the CD and it appears that there are no driver files, only documentation.
I called Apple, got no help, called Microsoft, spent 1.5 hours talking to them
they were no help either.
I sent a messge to the bootcamp beta mail address informing them that it seems the drivers are not being downloaded with bootcamp.
Thx again.

Can't use my HP Deskjet F4580 Wireless Printer with the AirPort Extreme Base. The printer is NOT connected at the USB port of the AirPort Extreme, and is placed in another room. It worked just fine with my previous router (Linksys WRT54G). Help me!

Hey Guys!
I just got my AirPort Extreme Base, but I can't use my HP Deskjet F4580 wireless printer with it.
The printer is not connected to the AirPort Extreme's USB port. It is placed in another room, and I'd like to use it (the printer) wirelessly (not connected to the USB port os the AirPort Extreme), as I used to. There is no place for the printer close the AirPort Extreme. It worked just fine with my previous wireless router (Linksys WRT54G). I'm very disappointed with the AirPort Extreme Base Station because of that!...
Can you help me? Please?!
Thanks Folks!

This must be a tough one, no suggestions at all.

How do I configure my Airport to work well with a Linksys WRT54G?

I have DSL Extreme coming into my house in bridge mode. (Don't know the specifics, but they said that's how it has to work.) I had my Airport Extreme connected to the modem, sending out a nice wireless signal.
I was given a Linksys WRT54G Ver. 6 wireless router, and I thought I'd use it as the main router connected the modem. I also want to use it as a wireless access point for one half the house for b/g devices AND I also want to set up the Airport Extreme as another wired access point for the other half of the house for n devices.
So, I set up the Linksys as the main router sending out a wireless signal on channel 1 for b/g devices. I connected the WAN port of the Airport to one of the open LAN ports on the Linksys, changed the Airport to Bridge mode, and set up a new wirelss network to broadcast on a different channel. Unfortunately, this isn't working. Only the Linksys wireless is working properly, i.e. connected to the internet. The Airport broadcasts the wireless signal, but it isn't connecting to the internet.
I've tried changing the IP address of the Airport to one that falls within the range of the Linksys (192.168.1.x) and making sure that the subnet of the Airport is identical to the Linksys. I've also added the DNS servers, although I'm not sure why the Airport Admin Utility asked for this. Regardless, nothing works. I'll get a green light, but there's no connectivity to the internet.
I've also tried connecting to a LAN port and not the WAN port on the Airport. No joy there.
I've read through numerous threads, and they all seem to indicate that my original set up should work. I've upgraded my Linksys firmware, to no avail. I don't want the Airport to be a repeater as there is a reduction in speed. I want to have two separate wireless access points.
Thanks in advance for any and all help.

Ok, I got you. Prior to the introduction of the simultaneous dual-band routers, the only way to mimic them was exactly what you are trying to do. Connect two routers by Ethernet and create separate wireless networks to allow clients to connect to either as appropriate.
You are also correct that the upstream router (Linksys) should have both NAT & DHCP enabled and that the downstream router (AirPort) be configured as a bridge. The only recommendation is to set the AirPort's static Private IP address to one just outside of the Linksys' DHCP server range instead of inside it to prevent the same IP address being handed out to multiple clients.
You could do this a number of ways, but the simplest would be to use the Configure IPv4 = Manually option on the TCP/IP tab within the AirPort Utility. Use the LAN-side IP address of the Linksys for the Router Address, and the appropriate DNS server addresses (either your ISP's or a service like OpenDNS). The Domain Name field can be left blank.
Since the AirPort is in bridge mode, it really doesn't matter which Ethernet port (WAN or LAN) you connect the Linksys to, but for consistency, I would recommend the WAN (circle-of-dots) port.

Linksys WRT54G router--Why doesn't it work with my Macbook?

I have a perfectly functional Apple MacBook (Unibody, late 2008) running Leopard 10.5.6. I have used it to connect to public Wi-Fi but it is unable to connect to my home Linksys WRT54G router. I called Apple Tech Support, and they suggested that I change the wireless channel and/or temporarily remove the WPA encryption. I did both, the computer still could not connect. In System Preferences on the MacBook, it tells me that "AirPort does not have an IP address and cannot connect to the internet." The tech support guy tried to help, but in the end basically told me that the router just plain might not be compatible with Apple products. (My iPod Touch cannot connect either.)
I can buy a new router, but this one works perfectly for the rest of the computers in the house (PCs) and they're expensive--and there's no guarantee that those will work either.
So: Does anyone know any solutions short of buying a new router that would make my Linksys compatible with my Macbook AND our home PCs? Or, failing that, a good, WPA-encrypted router that WILL work with both?
I have a Snow Leopard disk (I just received the computer on Thursday). Would upgrading to Snow Leopard be of any help? I'm planning on doing it anyway one of these days.
Many thanks in advance,
Sola Gratia

You are in the wrong forum but I'll try and help anyway. That model of Linksys router has a long history of not getting along with Apple products. That is not to say it will never work, but it does require that you download and install the latest firmware for the exact model of router that you have. There are multiple sub-models of that router so make sure that you get the right one.
Once you have done the firmware update, restart your router and try it again. WPA-psk should work but for troubleshooting purposes, turn off encryption and see if you can get your MacBook and touch working. You might want to use WPA2-psk instead of WPA.
I would hold off on Snow Leopard until you get WiFi working. Nothing like changing to too many things at one time to really mess things up.

Use airport express to extend network from linksys wrt54g

Hello all, I'm having no luck here, and hope you can help me. I am running a MacBook Pro, 2.16 GHz, Intel Core 2 Duo, 3 Gigs ram, OS X 10.6.8.I am at work, trying to use a newly purchased AirPort Express to extend the signal from the back office, which has a Linksys WRT54G router. I updated the router's firmware to 1.02.8, build 001, dated 8.5.09. I have tried numerous times to configure the AE using AirPort Utility, and always wind up with an error message, "An error occurred while updating the configuration. Make sure your Apple Wi-Fi base station is plugged in and in range of your computer or connected via Ethernet and try again. (-6753)" During the configuration process, I am asked what I want to do with AE, I have tried both "create a new wireless network," and "I want AE to join my current network," with no success. Any comments will be appreciated.

The Linksys WRT54G and WRT54GS (through version 4 only for both models) were said to be compatible with Apple's WDS settings.
Perhaps this article may offer some clues, but it is doubtful that you will be able to make this work with the particular version of Linksys router that you have.
http://hints.macworld.com/article.php?story=2006060516541633

Beating a dead horse but...Insufficient bandwidth error on Tiger 10.4.6

So I'm running a new Macbook pro i just took out of the box, my girlfriend is doing the same. It's come with the latest version of Tiger. Here's the thing: with iChat my girlfriend and i get the all-to-familiar Insufficient Bandwidth message when we try to connect. I can connect with another friend on a standard Macbook, and my girlfriend can connect with me on the PC at my work, but we cannot connect with each other.
We're both running off of Cable Modem router wifi and have bandwidth of at least 750 mbps. I've been through the support pages, opened port channels, adjusted quicktime streaming preferences, but to no avail. Any more ideas or any other tips to get this to work. Visual communication was the primary reason for the purchase of these computers, and we're frustrated to no end that it simply will not work after troubleshooting.
Macbook Pro Mac OS X (10.4.6)

HI theBen,
Welcome to the Apple Discussions.
At the ned of the day this can come down to the way your individual modems do NAT when using Port Forwarding, Port Triggering or DMZ and just not talk to each other properly.
This is because there are about six different ways manufacturers use to achieve NAT.
UPnP can help avoid this problem.
See here for more info http://www.ralphjohnsuk.dsl.pipex.com/page15.html#CertainBuddy
The iChat error messages are not always clear as to the exact problem and as you guessed ports can also be part of the problem.
11:22 AM Monday; June 19, 2006

Insufficient bandwidth

I'm trying to set up an iChat video chat with my dad.
We both have an brandnew iMac with iSight build in.
Both have an ADSL with more then 250kps upload (should be enough for ichat videoconferencing, isn't it?)
And still we get the warning insufficient bandwidth.
The same warning comes with audiochat as well.
Text chat works.
We tried to chet with the firewalls turned off.
So my guess is that it is the modem, either on my side or on his.
Best guess is his side as he has a wireless adslmodem/router.
But how do we check this and most important! How do we turn the firewall from the modem off?
We only need the firewall on our macs turned on and configurated well.
Ralph. Is was hoping to test my side of the iChat by trying a chat with you, but is your account AIM our .Mac??

Ralph, thanks for the help so far.
My side seemed to be working just fine, considering the succesfull chat we had.
I'm now working on my dads side.
The firewall of the modem (Philips Wireless ADSL modem sna6500) is disabled.
For the macOSX firewall I've installed the same iChat exception as I have on my own iMac, and I've found those in another tread about insufficient bandwidth on this forum.
The test-chat with appleu3test01 works.
But a videochat with my iMac doesn't work. Not even with both firewalls turned off.
Any suggestions what to sort out next?
The settings for Quicktime are set to 256 kbps (the uploadspeed of the ADSL-connection).
The settings for video in the iChat preferences are set to 200 kbps (500 is over the 256 kbps upload).
I'm pretty much out of idea's.
Normally both connections are fast enough.
My dad has 256 kbps upload and 4 mbps download
I have 384 kbps upload and 3,3 mbps download
at least, that is what we are paying for. How can we check the real connectionspeed?

Insufficient Bandwidth Linksys WRT54G 2.2

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